Top roll saddle



Dec. 6, 1955 R. G. DEXTER ET. AL 2725600 TOP ROLL SADDLE Filed Oct. 5, 1950 iiinzn Tgil l ROBERT e. DEXTER ROBERT RULOM-MILLER JAMES M. MORAN DENNHS C. RuGGER E iNVENTORS United States Patent TOP ROLL SADDLE Application October 5, 1950, Serial No. 188,516 6 Claims. cl. 19-137 This invention relates to improvements in a top roll saddle. More especially it has to do with a saddle having a removable bearing member which has limited universal movement with respect. to the body of the saddle.

it is among the objects of the present improvements to provide a top roll saddle having a bearing member which can be easily and quickly removed from the saddle if desired and a new bearing member as easily and quickly replaced. It is also an object to provide for limited relative universal movement between the body of the saddle and the improved bearing member. It is a still further object to provide on the bearing member an extended front section which will engage the top roll axle throughout a greater extent than has heretofore been possible with available bearing members.

The best mode in which it has been contemplated applying the principles of the present invention is disclosed in the accompanying drawings, but these are to be deemed merely illustrative because it is intended that the patent shall cover by suitable expression in the appended claims whatever features of patentable novelty exist in the improvements disclosed.

In the accompanying drawings: v

Fig. 1 is an elevation of the improved; saddle as a whole applied to top rolls whose axles areshown in section; v

Fig. 2 is a front View taken as on line 2-2 of Fig. 1;

Fig. 3 is a sectional elevation of a portion of the saddle taken as on line'33 of Fig. 2, but with the top rolls omitted;

Fig. 4 is a plan view of the bearing member shown in Figs. 1, 2 and 3; I

Fig. 5 is a view similar to Fig. 3, but showing a modified form of plate portion of the saddle body and a modi fied bearing member; i v

Fig. 6 is a plan view and Fig. 7 is a front view of the bearing member shown in Fig. 5;

Fig. 8 is another view similar to Fig. .3, but showing another modification in the plate portion of the saddle body and another modified bearing member; and

Fig. 9 is a plan view and Fig. 10 is a front View of the bearing member shown in Fig. 8. 2

Referring now to the drawings and particularly to Figs. 1. to 4 inclusive, the preferred form of saddle has a-body 10 which is generally of channel shape construction, the top side 104 being entirelysmooth and closed with sides 10b depending therefrom. A pin 12,extends across thesaddle body through the sides, botheiids of the pin being nicely swaged and rounded over to avoid any sharp projection on whichlint or fly can be caught. A stirrup 14 is engaged with the pin 12 and transmits the usual pressure to the saddle to be applied by the latter to top rolls 16. Only two such top rolls are shown, with the cooperating bottom rolls 18 but it is to be understood that other top and bottom rolls could be used. A conventional rear bearing member 20 is also shown but if desired a bearing member embodying the "ice 2 present improvements could be applied to the rear top rolland other intermediate rolls if used-as well as to the front top roll.

At the forward or front end of the saddle body 10 is an underplate 100 which extends rearward and overliesthe axle 16a of the front top roll 16. This underplate has a hole 10d through it whose axis passes through the axisof the axle 1612. The underplate is removably engaged by an improved bearing member which comprises several elements. p

In the preferred form shownin Figs. 1 to 4 inclusive, the bearing member 22 has a metal top plate 22a (see Fig. 3) Whose front edge 22b is turned down and bent slightly rearward. Parts 22a of the rear edge of this top plate are also turned downward but bent forwardly toward the rearwardly bent edge 22b. Another part 2211 of the top plate is turned upward to extend within the channel of the saddle body lobetween its side walls 10b. This upstanding part or element 22d of the bearing member is of less extent -than the width of the channel of the saddle body. I 1 Midway of the top plate 22a is an upstanding stem element 22:; which is split by three radial slots 22 (see Fig. 4-). This stem has a neck portion 22g which fits somewhat loosely in the hole 10d of the underplate 10 of the saddle body. The -dtmne-shafped head 22h'of the stern is normally larger than the hole 1021 but, because of the slots 22 the stem can be contracted and pushed throu h the hole 10d and thereafter expand by its own resilience to hold the bearin member loosely to the underplate 10a of the saddl body. I v p The actual bearing portion of the bearing member'is a block 221, preferably made of plastic, which has undercut from and back top ed es that can. be nicely slipped between the downwardly bent parts 225 and 22c of the top late; The block 222' has a cylindrical'surfacezfi of the same diametrical dimension as that of the top roll axle 16a. A feature of this block 22'i is that its front section 22k extends downward on the front side.

of the top roll axle throughout substantially one-quarter ofthe' axle circumference. This arrangement has "been found advantageous in that the resultant force of the pressure imposed by the stirrup .and the rotativelfriction'alforce exertedby the axle. is applied to the block. 22' somewhat forwardly-of the plane defined by the axis of the hole 102! and the axis of the front top roll axle.-

By extending the front section 22k of the block downward as shown, this resultant force is spread over a greater surface contact between the block and the axle thereby'les'sening the intensity of the force and reducing the wear 'on the block.

when the stem 22:: is inserted in the hole 10d of the underplate 10c, the bearing member has relative universal movement with respect to the saddle body and hence the. block and more particularly its cylindrical bearing surface 22 can readily adjust itself to fit nicely the bearing surface of the top roll axle. To prevent undue and unnecessary rotation of the bearing member about..fthe axis of the hole 10d, the upstanding element -z2d of t'hebearing member engages one or the other of the side. walls 10b or the "saddle body, this engagement thus Jimiting thie relativefu-niyersal movement of the bearing mem-l l to 4 inclusive, the top plate 22a of Figs. 5 to 7 has an extended portion 22d which curves upward and forward as shown clearly in Figs. 5 and 6. Opposite the 'hole d in the underplate 100' this curved-over element 22d has a depressed projection 22m which extends into the hole 10d and normally prevents separation of the bearing member from the saddle body. However, the curved-over element 22d is resilient and by tilting the bearing member somewhat downwardly and rearwardly, the element 22d will yield sufliciently to permit the bearing member to be disengaged from the saddle body.

Midway of the top plate 22a is a raised protuberance dome-like in shape. This provides a convex surface 222: on the bearing member of substantially the same curvature as that of the concave surface 10:: of the underplate 100. Contact of these surfaces enables the bearing memher to have relatively universal rotative movement with respect to the saddle body. But this universal rotative movement is limited in this modification by the engagement of the'curved-over element 22d with the sides 10b of the saddle body.

In the modification shown in Figs. 8 to 10 inclusive, the underplate 100" is provided with a hole 10d" and a concave under surface 10e similar to that shown in Figs. 5 to 7 inclusive, except that in this modification the underplate 10c" has a slot 10 of somewhat smaller width than the diameter of the hole 10d", extending from the hole to the rear edge of the underplate 10c".

The top plate 22a has a vertically disposed front edge 2211" as is shown in Figs. 5 to 7 inclusive, but at the rear of the top plate there is only an upstanding element 22d" like that seen in Figs. 1 to 4 inclusive. In this modification of Figs. 8 to 10 inclusive the block 221'" is held to the top plate 22a" by a screw 24 which screws through a dome-like raised portion 22n of the top plate 22a" and into the block. The head of this screw stands upward above the underplate 100', being somewhat larger than the hole 10d". The shank of the screw, however, is slightly smaller than the width of the slot 10f and thus the bearing member as a whole can be readily removed from the saddle body when desired ,by simply sliding the bearing member rearward. Here again the convex surface 22n' on the top plate 22a and the concave surface 10e' on the underside of the underplate 10c" enable the bearing member to have relatively universal movement with respect to the saddle body, while the engagement of the upstanding element 22d" with the side walls of the saddle body keeps this universal rotative movement within due limits.

The provision for the universal rotative movement makes the bearing member substantially self-aligning. This is of great advantage in that many of the parts of a spinning frame, even when new, are not in perfect alignment and after a short time in operation become worn and definitely misaligned. The self-aligning feature of the improved bearing member enables its bearing surface to engage the surface of the top roll axle nicely so that the pressure between the surface is distributed very evenly. This plus the longer front section on the bearing block cuts down the heat developed and the wear and materially increases the life of the bearing. The provision for ready removal of a bearing member from the saddle body makes replacement very simple and very rapid and thus cuts down greatly the stoppage time of a frame.

We claim: Y

1. A top roll saddle having a channel-shaped body and an underplate with a hole therethrough overlying the axle of a top roll, a bearing member for resting on the axle of a top roll and having a resilient element adapted to be contracted for insertion through said hole and thereafter self-expanded to hold said bearing member removably to the said underplate in such manner as to permit relative universal movement therebetween, and another element on said bearing member interposed between the sides of said channel body for limiting the extent'of'rotative movement of the said bearing member about the axis of said hole.

2. A top roll saddle having a channel-shaped body and an underplate with a hole therethrough with a concave surface surrounding-said hole, a bearing member for resting on the axle of a top roll and having an upper convex surface in contact with said concave surface, a resilient element on said bearing member having a portion bent around one edge of said underplate and having another portion overlying saidhole with a protuberance from the last said portion projecting into said hole; the said resilient element yielding to permit the bearing member to be applied to said underplate of the saddle for removably holding said bearing member to the said underplate in such manner as to permit relative universal movement between the said surfaces; the bent around portion of the resilient element lying between the sides of said'channel-shaped body to limit the rotative movement of the said surfaces about the axis of said hole.

3. A top roll saddle having a channel-shaped body having depending side walls and an underplate to overlie the axle of a top roll, said underplate having an opening therethrough, a bearing member for resting on the axle of a top roll, said bearing having an element thereon raised from the stock of the bearing member and engaged with the edges about said opening, said element having relative universal rocking movement about the edges of said opening, and a second element on said hear-- ing member interposed between the depending side walls of the channel body for limiting the extent of said relative universal rocking movement of said bearing member.

4. A top roll saddle as set forth in claim 3 wherein the first said element is generally convex at the location of engagement with the edges about said opening.

5. A top roll saddle as set forth in claim 3 wherein the first said element is generally convex and the edges about the opening generally concave to rest on the convex portion of said element, and resilient means on said bearing member for detachably holding said bearing to said underplate.

6. A top roll saddle as set forth in claim 3 wherein the first said element is a stud having a resilient compressible head for insertion through said opening.

References Cited in the file of this patent UNITED STATES PATENTS 2,075,484 Truslow Mar. 30, 1937 2,289,628 Conant July 14, 1942 2,496,765 Williams Feb. 7, 1950 2,607,084 Cotchett et al July 19, 1952 2,635,299 Abernethy Apr. 21, 1953 FOREIGN PATENTS 22,827 Great Britain 1893 203,017 Great Britain Aug. 28, 1923 

